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Power plant boiler heat storage and carbon dioxide power generation integrated deep peak shaving system and method

A carbon dioxide and boiler heat storage technology, which is applied to heating systems, heating methods, and central heating, can solve problems such as failure to achieve full flexibility peak regulation or operation goals, and achieve the effect of improving energy utilization efficiency and restoring power generation capacity

Inactive Publication Date: 2021-06-18
HUANENG CLEAN ENERGY RES INST
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Problems solved by technology

However, the full flexibility peak shaving or operation target has not yet been achieved

Method used

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  • Power plant boiler heat storage and carbon dioxide power generation integrated deep peak shaving system and method

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0027] see figure 1 , Power plant boiler heat storage and carbon dioxide power generation integrated deep peak shaving system, using flue gas and steam to heat the heat storage medium in the thermal power plant, and then storing it in a high-temperature heat storage tank, the stored heat can be used for power generation and heat supply when needed. Realize the complete decoupling of heat supply, power generation and turbogenerator sets in time and space through heat storage devices, and can perform flexible deep peak regulation.

[0028] The present invention utilizes the flue gas pipe drawn from the boiler 1 of the power plant to be connected to the shell side of the high-temperature flue gas heat exchanger 14, and is discharged from the lower part of the shell side through heat exchange. Heat the medium sent from the low-temperature heat storage medium pump 12 conn...

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Abstract

The invention discloses a power plant boiler heat storage and carbon dioxide power generation integrated deep peak shaving system and method. The power plant boiler heat storage and carbon dioxide power generation integrated deep peak shaving system comprises a power plant boiler, a high-temperature flue gas heat exchanger, a low-temperature heat storage tank, a high-temperature flue gas heat exchanger, a high-temperature heat storage tank, a high-temperature heat storage steam heat exchanger, a steam turbine generator unit, a carbon dioxide heat exchanger, a low-temperature heat exchanger and a carbon dioxide turbine generator unit. Boiler flue gas heat can be utilized to the maximum extent, heat storage media are adopted for heat storage in combination with steam extraction heat of the steam turbine, electricity generated through the minimum steam flow of the steam turbine can be also stored in the heat storage tank, such that zero output of the unit is achieved.

Description

technical field [0001] The invention belongs to the field of power generation in thermal power plants, and in particular relates to a deep peak-shaving system and method for integrating boiler heat storage and carbon dioxide power generation in a power plant. Background technique [0002] With the continuous development of economy and society, the demand for energy is increasing day by day, and the pollution of fossil energy is becoming more and more serious. It is imperative to develop clean and renewable energy. By the end of 2019, the installed capacity of renewable energy power generation accounted for 40%. With the further adjustment of the energy structure, the scale of new energy installed capacity and power generation will continue to increase further. Clean energy power generation and heating are encouraged across the country, so thermal power plants will inevitably give way to the development of clean energy. How to coordinate and dispatch renewable energy power ge...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D11/00F24D19/10F01K11/02F01K25/10F01D15/10
CPCF01D15/10F01K11/02F01K25/103F24D11/005F24D19/1009Y02A30/60
Inventor 郑建涛李卫东杨剑
Owner HUANENG CLEAN ENERGY RES INST
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